Shielded plug-in connector

ABSTRACT

A shielded plug-in connector has a jack-in-blade strip having at least one first contact element and an edge connector having at least one second contact element corresponding to the first contact element. The edge connector, on or in its outer body areas, has at least partially shielding sheets. Shielding of the plug-in connector is achieved by, in addition to the shielding sheets provided on the edge connector, a shielding group with at least one first element arranged in the jack-in-blade strip. The first element of the shielding group is a base part in the form of a U-shaped rail. The shielding sheets on the edge connector have a planar body and angled stays. Two of the angled stays and a portion of the planar body between the two angled stays form a counterpart to the base part, wherein the counterpart and the base part together substantially encapsulate the first and second contact elements.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a shielded plug-in connector, in particular, amulti-pole, single-row or multi-row plug-in connector, preferablycomprised of a jack-in-blade strip and an edge connector, with whichelectrical lines, in particular, lines of electronic components orassemblies, in particular, circuit boards, are connected with oneanother, preferably in a detachable way.

2. Discussion of the Related Art

In known plug-in connectors shields for a single-pole or also multi-poleplug-in connector are designed such that the plug part and/or the socketpart, the jack-in-blade and/or the edge connector, are provided withlarge surface area shielding sheets mounted externally or internally ontheir housing parts. This type of shielding is effective forinterference signals that act from the exterior on the plug part. Forshielding individual contact elements which are, in particular, arrangedin multiple rows and, moreover, in a multi-pole plug-in connectorprovided for the aforementioned application, the known type of shieldingis not effective, in particular, when via the contact elementsconnecting the lines high-frequency signals are to be transmitted. Theusers of the aforementioned plug-in connectors therefore always pose inthis respect higher requirements; at the same time there is thepermanent requirement for reduced manufacturing costs as well asminiaturization of the contact distances and size of the plug-inconnectors.

Therefore, it is an object of the invention to develop such a plug-inconnector with shielding, in particular, a plug-in connector comprisedof a jack-in-blade strip and edge strip(s), such that also for minimalspacings of the contact elements of the jack-in-blade strip and edgeconnector relative to one another, as present in the so-called 2-mmplug-in connectors, a sufficient shielding of individual contactelements, a contact pin and/or a contact spring or group of same isensured and such that the plug-in connector or its components can beproduced with a reduced expenditure.

SUMMARY OF THE INVENTION

This object is solved according to the invention by a shielded plug-inconnector wherein the shielding of the plug-in connector is comprisedof, in addition to the shielding sheets provided on the edge connector,a shielding group comprised of at least one first element, wherein thisfirst element is arranged in the jack-in-blade strip. The dependentclaims disclose advantageous further developments as well as embodimentvariants of the basic new configuration of important components of theplug-in connector, in particular, of its new shielding group.

The invention is based on a shielded plug-in connector, in particular, amulti-pole, single-row or multi-row plug-in connector, comprisedpreferably of a jack-in-blade strip and edge connector, wherein thejack-in-blade strip has at least one first contact element in the formof a contact pin and the edge connector has at least one second contactelement which corresponds to the first contact element and is in theform of a contact spring. In this plug-in connector the edge connectoris provided, on or within its external body areas, at least partiallywith shielding sheets. New and decisive in regard to the subject matterof the invention is that the shielding of the plug-in connector isrealized in addition to the shielding sheets provided on the edgeconnector and comprised of a shielding group which is comprised of atleast one first element, wherein this first element is arranged in thejack-in-blade strip. A further development resides in that the firstelement of the shielding group is a base part whose basic shape ispreferably a U-shaped rail. The basic shape of the base part can howeverhave any envelope-shaped or sleeve-shaped form, but the mantle surfacemay not be closed; it has preferably a longitudinal slot. Experiments bythe inventors have shown that the aforementioned U-shape is anadvantageous embodiment.

According to another embodiment the shielding group is comprised of abase part and a counterpart.

Preferably, it is furthermore provided that the counterpart of theshielding group is an integrated component of one of the shieldingsheets of the edge connector. Moreover, it is preferably provided thatthe base part of the shielding group laterally surrounds at least onecontact pin, in particular and preferably two contact pins of thejack-in-blade strip essentially substantially completely while leavingopen a preferably upwardly extending gap.

The advantages of the invention reside, in particular, in that the partsof the new shielding group for the jack-in-blade strip and for the edgeconnector can be produced as simple bent components, in particularbecause particularly partial areas thereof can be formed with minimalexpenditure to a springy area and, moreover, a base part and acounterpart can be produced of a basic shape, wherein the partial areasthereof facing one another when inserting both parts, in particulartheir upper and lower end faces, deviate from one another only slightlywith respect to their configuration so that the manufacturingexpenditure can be kept low. A further advantage results when using thebase part of the new shielding group for multi-pole and multi-rowplug-in connectors. Even though the basic element of the new shieldinggroup, the U-shaped base part, has only three walls, the contact pins,even for an open plug-in connector, at least those in the following rowof contact pins, are shielded by a fourth shielding wall, substantiallyall-around, because the back wall of the base part/base parts of thepreceding row forms the aforementioned fourth shielding wall.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be explained in more detail with the aid ofembodiments which at the same time illustrate further advantages of theinvention. The drawings show in this connection in a schematicillustration in:

FIG. 1 the new plug-in connector in an embodiment jack-in-bladestrip/edge connector during plugging in of an edge connector onto thecontact pins of a jack-in-blade strip;

FIGS. 2 and 3 a known jack-in-blade strip of a plug-in connector whichis provided with elements of a new shielding group;

FIGS. 4 to 4 c the new shielding group which is comprised of a base partand a corresponding counterpart;

FIG. 4 the base part of the new shielding group which is shown hereupright in a perspective view;

FIGS. 4a to 4 c the base part and the counterpart in different phasesduring plugging in;

FIG. 5 a perspective view of an edge connector for the new plug-inconnector;

FIG. 6 the base body for the new edge connector according to FIG. 5 inan advantageous variant;

FIG. 7 shows the shielding sheet belonging to the base body according toFIG. 6 with integrated base parts of the new shielding;

FIG. 8 contact springs for the edge connector according to FIG. 5;

FIG. 9 the base body of the edge connector according to FIG. 5 withinserted shielding sheet resting against the bottom as well as contactsprings inserted into the base body;

FIG. 10 a special cover for the edge connector according to FIG. 5;

FIG. 11 the contact and shielding elements of the new plug-in connectoraccording to FIG. 1 in a position directly before the plug-in stepwherein the further components of the jack-in-blade strip and the edgeconnector are not shown;

FIG. 12 shows a partial cross-section of a new plug-in connectoraccording to FIG. 1 with completely inserted edge connector;

FIGS. 13 to FIG. 18 show a further new embodiment variant for an edgeconnector with newly configured shielding, preferably a two-row edgeconnector;

FIG. 13 a perspective view from the rear onto the two-row edgeconnector;

FIG. 14 one of the two base bodies of the edge connector according toFIG. 13, with shielding elements arranged on both sides;

FIG. 15 the front housing part of the two-row edge connector in aperspective view;

FIG. 16 the front housing part according to FIG. 15 with an insertedbase body covered on both sides;

FIG. 17 the rearward housing part of the two-row edge connectoraccording to FIG. 13; and

FIG. 18 in a perspective view the parts of the two-row edge connectorduring the plug-in process for assembly.

DESCRIPTION OF PREFERRED EMBODIMENTS

In FIG. 1, the new shielded plug-in connector is shown in an embodimentof a jack-in-blade strip/edge connector during plugging in of the edgeconnector 40 onto contact pins of the jack-in-blade strip 30. Forimproved illustration, the edge connector 40 in this illustration issectioned transversely. An upper cover 90 of the edge connector 40 ispartially broken away in FIG. 1, also a back wall of the base parts 1 sothat in this illustration the position of the contact pins 38 and of thecontact springs 80, in particular, their front spring part 81, can beseen. The terminal tabs of the contact springs of the edge connector 40are identified by 84. The jack-in-blade 30 is comprised in a mannerknown in the art of a socket 31, sidewalls 34 and 35, as well as a frontwall and back wall which are connected with the sidewalls 34, 35 and thesocket 31 in a positive-locking way. For the purpose of material andweight savings, the sidewalls, front wall, and back wall are of a thinwall configuration and are stabilized by inwardly projecting, upwardlyextending stays which are illustrated but not identified in FIGS. 1through 3. The edge connector 40—shown during plugging in according tothe direction of the arrow—is in a position immediately beforecontacting of the spring parts 81 of the contact springs 80 with thecontact pins 38. The housing 41 of the edge connector 40 isposition-secured in the jack-in-blade strip 30 by the stabilizing pinswhich are not identified. The new shielding group according to theinvention for this embodiment of the new plug-in connector is comprisedin particular of a base part 1, illustrated in FIG. 4. This base part 1,configured preferably as a U-shaped part, is preferably arranged in thejack-in-blade strip 30. In an advantageous embodiment, as illustrated inFIGS. 1 through 3, several base parts 1 are provided for the contactpins 38 arranged in a row wherein two neighboring contact pins havecorrelated therewith one base part 1, respectively. The sidewalls ofneighboring base parts 1 are spaced from one another with formation of afree space, not identified. Corresponding to the position of the baseparts 1, slots, not identified, are provided in the upper cover 90 ofthe edge connector 40 which are provided counter to the plug-indirection but along the same in the upper cover 90 and have a lengthwhich matches the length of the base parts 1. In this illustration—FIG.1—the stays 72, 73 and 74 of the shielding sheet 70 of the edgeconnector 40, projecting into the aforementioned slots, are shown aswell as the grooves 66 provided in the base body of the same 40, whichextend, respectively, so as to correspond to the slots provided in theupper cover 90 as well as to the stays 72, 73 and 74. During and uponcompletion of the plug-in action of the edge connector 40 into thejack-in-blade strip 30, one of the sidewalls of neighboring base parts 1is positioned adjacent to the angled stays 72, 73 and 74, illustratedhere. The further and detailed configuration of the base parts as wellas of the parts provided within the edge connector 40 of the newshielding group will be explained in the following with the aid of FIGS.2 to 4 c as well as FIG. 12.

FIG. 2 shows the jack-in-blade strip 30 in a perspective view from abovewith a viewing direction onto the contact pins 38 as well as onto baseparts 1 of the new shielding group shielding a group of two contact pins38 on three sides, respectively. The sidewalls are identified with 34and 35, the back wall with 37 and the socket with 31. In thisillustration of the jack-in-blade strip 30, the front wall, which ishere oriented to the rear, is separated from the same by a verticalsection, for the purpose of space saving for the illustration. In theFIG. 3 shown above FIG. 2 the jack-in-blade strip 30 is rotated by 180°relative to the FIG. 2. The vertical section extends here behind thefirst row of base parts 1 in comparison to FIG. 1. The onlooker looksonto the inner wall 36 of the base of the back wall 37. In the socket 31several slots 33 are provided which surround on three sides a group oftwo receiving holes 32 for the contact pins 38, respectively. In thesereceiving slots 33 a base part 1 with its lower area 6 is inserted,respectively, and preferably locked in place.

The base part 1 of the new shielding group is illustrated in detail inFIG. 4 in a preferred embodiment. It is a U-shaped rail, having a backwall 2, a left sidewall 4, and a right sidewall 3. In the head area 5and in the foot area 6 the rail is open, respectively. In the foot area6 the sidewalls 3 and 4 are somewhat set back in the direction towardthe head area 5 so that at the back wall 2 a stay-shaped step 7 results.In the area of this stay-shaped step 7 in the inner surface of the backwall 2 in the vicinity of the lower edge, at least one, in this specialembodiment two, depressions 8 are provided in which, in particular, alocking member can snap into place which is preferably positioned in thesocket 31 of the jack-in-blade strip 30 but is not illustrated in theFigures. The sidewalls 3 and 4 have in the head area 5 a corner part 10and 11, respectively, which is bent outwardly with lateral displacement16. The corner parts 10 and 11 are bent outwardly about the bending line15 so that the upper corner, formed by the horizontal and vertical outeredges of the sidewall 3 and the sidewall 4, projects farthest to theexterior, respectively. The upper, outer horizontal edge of the cornerpart 10 and of the corner part 11 is provided respectively with a slant12 or 13 along the aforementioned edge. The upper, inner edge of theback wall 2 has also such a slant 14. The base parts 1 comprised ofshielding material surround on three sides a contact group, comprisedrespectively of two contact pins 38, of a row of contact pins 38. In theembodiment illustrated in FIG. 2 in the second row of contact pins 38and in each further row of contact pins 38 each group of contact pinscomprised of two contact pins 38 is shielded on three sides by therespectively correlated U-shaped base parts 1; the fourth side is at thesame time shielded by the back wall 2 of a base part 1 which is arrangedin the preceding row. The contact pins 38 in the front row of contactpins 38, directly arranged at the front wall 37, is shielded relative tothe fourth side at least by the housing shielding provided on theinsertable plug-in edge connector 40.

With the employed new shielding group which is comprised of at leastone, preferably several, base parts, which are provided at least in thejack-in-blade strip in the aforementioned form, signal-guiding contactsor contact groups of a jack-in-blade strip and edge connector areshielded even better than in the prior art from outer electrical,magnetic, or electromagnetic interference fields, respectively, theradiation of electromagnetic high-frequency vibrations to the exterioris at least greatly reduced.

When the effectiveness of the shielding is to be further increased, theinvention further provides that another assembly correlated with theplug-in connector, generally an edge connector 40, a counterpart 20 isprovided which is matched to the U-shaped base part 1 of the newshielding element and is illustrated in FIGS. 4a to 4 c and is comprisedof a back wall 21 as well as two sidewalls 22 and 23. It is moreoversized such that the base part 1, the U-shaped rail, can be inserted intothe counterpart 20 which is also embodied as a U-shaped rail, whereinthe corner parts 10 and 11 of the base part 1 act like a spring elementand rest in a positive-locking connection inwardly at the sidewalls 22and 23 and glide along them 22 and 23 during the plug-in process. Forfacilitating the illustration, the counterpart 20 is illustrated in aposition rotated by 180° about its longitudinal axis so that theinsertion movement is shown in the drawing.

The sidewalls 22 and 23 as well as the back wall 21 of the counterpart20 are provided in the edge area of their foot area at the inner sidewith a slant 24, 25, 26, respectively. These slants 24, 25, and 26 aswell as the slants 12, 13, and 14 provided in the head area 2 of thebase part 1 act as guiding surfaces and facilitate the interconnectionof the parts of the new shielding group.

In a modified form and an embodiment important to the invention, thecounterpart 20 is an integrated component of the shielding sheet 70 ofthe edge connector 40. This development of the invention is illustratedin FIGS. 5 through 12. In FIG. 5 the complete edge connector 40 isillustrated in a perspective view. For facilitating the orientation forthe following description, the FIG. 5 has correlated therewith athree-axis coordinate system for the identification of the body surfacesof the edge connector 40, respectively, its individual parts. Thereference characters arranged on the coordinate system “RK” have thefollowing meaning: “V”—viewing direction from the front; “H”—frombehind; “L”—from the left; “R”—from the right; “O”—from above; and“U”—viewing direction from below. In a housing 41 the individual partsof the edge connector 40 are shown. The housing 41 is closed by an uppercover 90 which is provided with an insulating layer and a shieldinglayer. At the end face of the housing 41 a front part 42 is providedwhich comprises several, sleeve-shaped inlets 43 adjacently arranged ina row into which 43 the contact pins 38 of the jack-in-blade strip 30can be inserted. After each second sleeve-shaped inlet 43 a groove 44 isprovided which opens the front part 42 in the upward direction and whichwill be explained in more detail at a later point. Moreover, at the leftpart of the housing 41 a locking hole 45 is provided at the rearwardarea; illustration in FIG. 1. The pins for positioning and fixation ofthe upper cover 90 are identified by 55. The right center and rightrearward part of the side surface of the edge connector 40 is recessedto the left to such an extent that the terminal tabs of the contactguiding elements of the edge connector, projecting to the right from theedge connector 40, can be connected at, on or in a circuit board so thatthe circuit board after fastening preferably does not project past theright lateral surface of the housing 41. The size of this partialrecesses of the right lateral edge of the edge connector depends on theconventional standard values of the respective application situation. InFIG. 6 a basic body 50 of the edge connector 40, in FIG. 7 the inventivenew configuration of the shielding sheet 70 correlated with the basebody 50, in FIG. 8 the contact springs 8, and in FIG. 10 the upper coverof the edge connector 40 are illustrated in detail.

The base body 50 has channels 52, 53, and 54 extending from the uppersurface 50 a and machined into the body which are sized such that thecontact springs 80 can be received therein. The channels 52 to 54 arearranged such that the respective end areas 84 of the inserted contactsprings 80 project from the right lateral surface of the edge connector40, i.e., relative to a forward surface 60 they are displaced by 90°.Starting at the forward surface 60 in which several openings 56 areprovided the rearwardly extending front channel 52 adjoins, followed bya central channel 53 and a rearward channel 54. The forward channel 52is somewhat wider than the two other channels 53 and 54 because in thisforward channel 52 the corresponding spring part 81 of a contact spring80 is positioned. The center part 82 of the contact spring 80 ispositioned in the central channel 53 and the end part 83 of the contactspring 80 in the rearward channel 54. In the end part 83 a hole 85 isprovided which is slipped over a pin 55 provided in the rearward channel54 so that the contact spring 80 is fixed at the same time in thelongitudinal direction. In the channels 52, 53 and 54 several stays, notidentified, are provided laterally and at the bottom of the respectivechannel so that each inserted contact spring 80 is spaced relative tothe base body 50 and rests therein 50 multiple times but only with pointcontact so that over substantial body areas between base body andcontact spring 80 a large area air buffer is provided; see FIG. 6 inthis context. This air buffer effects an additional shielding of eachcontact spring 80.

Moreover, in the base body 50 grooves 66 are provided which begin at theforward surface 60 and are positioned between a pair of front channels52, respectively. Laterally and parallel to each pair of adjacentlypositioned channels 52, 53, and 54, slot-shaped penetrations 61, 62, 63,64, and 65 are provided in the base body 50. They penetrate same fromthe bottom to the top. These penetrations serve for receiving parts ofthe shielding sheet 70 positioned at the bottom surface 50 b of the basebody 50 which sheet will be explained in more detail in the following.To the left and the right on the base body 50 lateral cutouts 57, 58, 59are provided which also serve for receiving parts of the aforementionedshielding sheet 70. By means of the contact springs 80 beginning at theforward surface 60 and fitted substantially longitudinally in the basebody and exiting laterally from the base body, a contact free area 51 isprovided at the rearward part of the base body. In this area 51, asillustrated in FIG. 6, laterally a locking hook 67 is provided which,after assembly of all parts of the edge connector 40, snaps into placein a locking hole 45 of the base body 41, as illustrated in FIG. 1. Theshielding sheet 70 corresponding to the edge connector 40, which isinserted into the housing 41 and onto which 70 the base body 50 isslipped, as illustrated in FIG. 7. In a new configuration according tothe invention, the shielding sheet 70 has integrated therein thecounterpart 20 of the novel shielding group. In realization of theobject of the invention with respect to lowering themanufacturing-technological expenditure, the planar body 79, the basepart of the shielding sheet 70 is provided with angled upwardlyprojecting stays 71, 72, 73, 74 and 75. These stays 71 to 75 result froma three-sided continuous stamping in the planar body 79 and subsequentbending of the tabs formed by stamping into a respectiveposition—plane—which is positioned approximately 90° relative to theplanar body 79. The position as well as the size of these stays dependson the conditions of the respective edge connector 40 and are arrangedcorresponding to the slot-shaped penetrations 61 to 65, respectively,the lateral cutouts 57 to 59 in the base body 50 of the correspondingedge connector 40. Respective neighboring stays or rows of stays and thepart positioned therebetween of the planar body 79 form thus acounterpart 20 for the novel shielding group. A counterpart 20 is thusformed of a stay 71 and a stay 72 and an area of the planar body 79positioned between them as well as a stay 72 and 73, a stay 73 and 74 aswell a stay 74 and 75 and the respective area arranged between thesestays of the planar body 79, respectively. At the right side, in thecentral and rearward area, the shielding sheet 70 has projections 77separated from one another by cutouts 78 which serve for contacting thecircuit board connectable thereto and not illustrated in the Figures.

FIG. 9 shows an illustration in which the shielding sheet 70 is arrangedbelow the base body 50 and the contact springs 80 are inserted into thechannels 52 to 54 provided in the base body 50. As can be taken fromthis illustration, the stays 71 to 75 of the shielding sheet 70 projectinto the penetrations 61 to 65 or lateral cutouts 57 to 59 providedwithin the base body 50 so that a contact spring 80 is shieldedsubstantially over its entire longitudinal area, respectively, a groupof contact springs 80, which is comprised here of only two contactsprings 80, is shielded, in addition to the upper and lower shielding,also laterally.

In FIG. 10 the individual part of the upper cover 90 of the edgeconnector 40 is illustrated. In the middle and rearward part to theright, holes 54 are provided, which with respect to the number andposition, match the pins 55 of the base body 50. Beginning at the endface, slots 91, 92, and 93 extend substantially parallel to the lateraledge into the body of the upper cover 90. These slots 91 to 93correspond with the grooves 66 of the base body 50 and are approximatelyof the same width and length as those 66.

FIG. 11 shows an embodiment in which the contact elements and elementsof the new shielding group are positioned in a position directly beforethe plug-in step, wherein the further components of the jack-in-bladestrip and the edge connector are not shown in order to facilitate theillustration. Relative to the illustration in FIG. 5, the imaginary edgeconnector 40 is rotated by 180° so that the right side of the edgeconnector 40 according to FIG. 5 is positioned to the left in FIG. 12.In this view, several base parts 1 are shown which shield two contactpins 38, respectively. The oppositely positioned sidewalls ofneighboring base parts 1 contacted the shielding sheet 70 at theirangled stays 71, 72, 73, 74 or 75. After complete insertion has beencarried out, the contact elements connected to one another of theplug-in connection, i.e., the contact pins 38 and the respectivematching contact springs 80, are surrounded completely in pairs by abase part 1 and a correspondingly positioned, also U-shaped area of theshielding element. Such a shielded positioning is illustrated in FIG.12. The plug-in contacts in the contact area are transversely sectioned;the Figure shows a detail of a plug-in connection. Shown are the area ofthe shielding sheet with its planar body 79 and the angled stays 71 to75, areas of the basic body 50, areas of the upper cover 90, areas ofthe base parts 1, contact pins 38, forward channels 52, partial areas42, 43 of the housing 41, partial areas of the slots 91, 92 and 93 aswell as of the grooves 66; moreover, openings 79a resulting from theangled stays in the planar body part 79 which, with respect to theeffectiveness of the inner shielding, are of no concern. The contactpins 38, respectively, the respective group of the contact pins 38 isencapsulated with respect to shielding-technological aspects by thenovel shielding group, i.e., the corresponding area of the planar body79 of the shielding sheet 70, by the two neighboring angled stays, forexample, stay 71 and stay 72, as well as the base part 1 that can bepushed therebetween, i.e., its sidewalls 3 and 4 as well as its backwall 2, relative to other contact pins 38 or groups of contact pins 38.

In FIGS. 13 to 18 a further advantageous embodiment of the inventivebasic idea is illustrated. In these Figures a two-row further edgeconnector 400 is shown in different perspective views and differentstages of assembly. As in FIG. 4, in FIG. 13 a coordinate system is alsoprovided with which the viewing directions are defined. FIG. 13 showsthe further edge connector 40 in the assembled state. For improvingillustration, a row of contact springs together with the correspondingbase bodies and shielding sheets is not illustrated. The further edgeconnector 400 is comprised of a front housing part 401, a rearwardhousing part 410 as well as two further base bodies 500. Each base body500 receives a row of contact springs 80, respectively, together withthe corresponding shielding sheet and the upper cover. The central andrearward area of the right side of this further edge connector 400 isrecessed, like the edge connector 40, slightly to the left; this is donealso for the purpose of connecting a circuit board. On the left side 411in the rearward housing part 410 two locking holes 419 are provided intowhich a central locking hook 507 of one of the two further base bodies500 can snap into place, respectively. Moreover, in front of eachlocking hole in the direction toward the front housing part 401 aprofiled groove 418 is provided which penetrates the forward end face ofthe rearward housing part 410 and is provided for receiving a nose 506of the further base body 500. The rearward wall 412 covers substantiallythe rearward body surface 501 of the further base body 500 and securesby means of a correspondingly shaped inner configuration the furtherbasic body 500 at a second location so that this further base body isnot only secured by means of the body points 506, 507 in connection withthe forwardly positioned body points 418, 419 of the rearward housing410. The further details are illustrated in FIGS. 14, 16, 17, and 18. Inthis edge connector 400 the same contact springs 80 and the sameshielding sheet 70 are used which also have been used in connection withthe aforedescribed edge connector 40. The channels 51 to 53 forreceiving the contact springs 80 are of the same configuration. Incomparison to the edge connector 40, in this further edge connector 400whose further base body 500 with respect to the design of its housing aswell as its locking action, is configured differently. The housing isdivided into a rearward housing part 410 and a front housing part 401,i.e., into two separate housing parts so that at leastmanufacturing-technological advantages result. The front housing part401 is illustrated in detail in FIG. 15. It has a forward front 42 whichhas also sleeve-shaped inlets 43 which are arranged adjacently in a rowand has grooves 44 which separate the inlets 43 into groups of twoinlets 43. Moreover, in the front part 42 a transverse slot 402 isprovided which extends from the left side part 404 to the right sidepart 405 and is arranged parallel displaced between the two rows ofinlets 43. In connection with the groove 44 this transverse slot 402makes possible the insertion of base parts 1 arranged in a row in thejack-in-blade strip 30. For guiding and forward lateral positioning ofthe completely furnished further base bodies 500 at the inner side inthe forward housing part 401, in a row and spaced apart from oneanother, stops 407 are provided as well as depressions 408 and 409 inthe inner area of the side parts 404 and 405. Moreover, locking holes406 are provided in the side parts 404 and 405 for locking with thefurther base body 500 in which the locking hooks 504 and 505 of thefurther base body 500 will lock into place upon insertion.

In FIGS. 16 and 14 as well as 18 in addition to further components acompletely furnished basic body 500 is illustrated. Since the innerparts of this further basic body 500, i.e., the contact springs 80, theshielding sheet 70 as well as substantially the base body, i.e., thearea receiving the contact springs 80, resemble the corresponding areaof the edge connector 40, which has been described already above, thesedetails will not be explained in more detail in this context. To theleft and to the right, the base body 500 is provided at its respectivefront area with a left locking hook 504 and a correlated nose 506 aswell as a central locking hook 507 and has at the right side a rightlocking hook 504 with a correlated guiding pin 508. In the rearwardcontact-free area grooves 502 and 503, starting at the upper surface 500a and the lower surface 500 b, are provided in the body 500 whichpenetrate its rearward body surface 501. The closure of the further basebody 500 together with the inserted contact springs 80 from above isrealized by a further upper cover 900. This further upper cover 900 hasa rearward slanted body edge 903. The further upper cover is providedwith a peripheral rim, not identified, which surrounds a depression, notidentified, in the same 900 in which a shielding part 902 is received.The depression is selected such that the peripheral rim projectsslightly past this shielding part so that in the case of adjacentlyarranged, completely furnished further base bodies 500 no body contactcan result between neighboring shielding parts 902. The further uppercover 900 has an insulating effect. In order for the front area of thecontact springs 80, the spring parts 81, to be insulated relative toother contacts, the further upper cover 900 has a corresponding numberof stay-shaped tabs which project up to the inner side of the front part42 of the front housing part 401. In FIG. 14, these tabs 901 are coveredby the illustrated base parts 1 which 1 complete the electric shieldingof the front area of the contact springs 80.

In the illustration according to FIG. 16, the front housing part 401 isconnected to a further base body 500 wherein the locking hooks 504 and505 are snapped into place in the corresponding locking holes 406. InFIG. 17 the rearward housing part 410 is illustrated in a perspectiveview wherein the viewing direction of the viewer extends from the frontto the rear and the viewer views the rearward housing part 410. Startingat the back wall 412, a left wall 411, a lower wall 413, an upper wall414 as well as a rib 415 arranged centrally between the latter projectto the front. The front surfaces of these walls 413, 414, and 415 areshaped according to the extension of the slanted body edge 903 of thefurther upper cover. At inner sides of the walls 413, 414, and 415guiding strips 416 and 417 are provided extending toward the left wall411. When inserting the rearward housing part 410, these guiding strips416 and 417 are inserted into the grooves 402 and 403 and secure thefurther base body 500 also in its rearward area. In comparison to theconfiguration of known edge connectors this fixation is new. On thelower side 500 b of the further base body 500, in analogy to the slantedbody edge 903 of the further upper cover, a guide stay 509 is providedwhich matches the lower wall 413 of the rearward housing part 410. Thelower surface 500 b of the further base body 500 is provided with adepression for receiving the shielding sheet 70 in the area of thechannels receiving the contact springs with penetrations for guidingthrough the angled stays of the shielding sheet 70 as well as the guidestays 509 so that the outer lower surface 500 b, when viewed laterally,projects past the outer surface of the shielding sheet 70.

In FIG. 18 in the front housing part 401 a of further furnished basebody 500 is inserted and locked. The rearward housing part 410 is movedfor mounting of the further edge connector 400 to the front in thedirection toward the front housing part. For reasons of facilitating theillustration, the second further base body 500 is not shown. It can beclearly seen that the rearward body surface 501 of the further base body500 is inserted between the lower wall 413 and the centrally arrangedrib 415 into the rearward housing part 410. The completely insertedrearward housing part 410 together with completed locking action isillustrated in the already described FIG. 13. The thickness of the lowerwall 413 and of the upper wall 414 is selected such that their outersurface is positioned in the same plane as the outer surface of thefurnished further base body 500, respectively, is positioned slightlyexternal thereto so that when successively arranging several multi-rowedge connectors according to this embodiment, respectively, whenpositioning them adjacently to one another, for example, single-row edgeconnectors, as illustrated, for example, in FIG. 5, possibly onlyhousing parts with insulating effect will come to rest against oneanother or will contact one another when the inserted edge connectorsare moved possibly in the lateral direction out of their nominalposition.

All features mentioned in the above description as well as features thatcan be taken only from the drawing are further components of theinvention even though they might not be particularly emphasized and, inparticular, not mentioned in the claims.

The invention is not limited to the described embodiments but ismodifiable within the context of the disclosure in many ways.

LIST OF REFERENCE NUMERALS

1 base part (u-shaped rail)

2 back wall

3, 4 sidewalls

5 head area

6 foot area

7 stay-shaped recess

8 depressions

9 upper end area

10, 11 corner parts

12 slant (at the upper outer horizontal edge of part 10)

13 slant (at the upper, outer horizontal edge of part 11)

14 slant (at the upper inner edge of part 2)

15 bending lines

16 lateral displacement

17 thickness (of the parts 2, 3, and 4)

20 counterpart

21 back wall

22, 23 sidewalls

24 slant (at the lower inner edge of part 22)

25 slant (at the lower inner edge of part 21)

26 slant (at the lower inner edge of part 23)

30 jack-in-blade strip

31 socket

32 receiving holes (for contact pin; part 38)

33 receiving slots (for base part, part 1)

34, 35 sidewalls

36 inner wall (of part 37)

37 back wall

38 contact pins

40 edge connector

41 housing

42 front part

43 sleeve-shaped inlets

44 groove

45 locking hole

50 base body

50 a upper surface

50 b lower surface

51 contact-free area

52 front channel

53 central channel

54 rear channel

55 pins

56 openings

57, 58, 59 lateral cutouts

60 front surface

61 slot-shaped penetrations

62 slot-shaped penetrations

53 slot-shaped penetrations

64 slot-shape penetration

65 slot-shaped penetrations

66 grooves

67 locking hook

70 shielding sheet

71 angled stays

72 angled stays

73 angled stays

74 angled stays

75 angled stays

76 bulges

77 projections

78 cutout

78 a guide pin

79 planar body

79 a openings

80 contact spring

81 spring part

82 central part

83 end part

84 terminal tab

84 a connecting pin (press-in pin)

85 hole

90 upper cover (with an insulating layer and a shielding layer)

91,92,93 slots

94 holes

400 further edge connector

401 front housing part

402 transverse slot

403 stays

404 left side part

405 right side part

406 locking hole

407 stops

408, 409 depressions

410 rearward housing part

411 left wall

412 rearward wall

413 lower wall

414 upper wall

415 rib

416, 417 guiding strip

418 profiled groove

419 locking hole

500 further base body

500 a upper surface

500 b lower surface

501 rearward body surface

502 groove (in part 50 a)

503 groove (in part 50 b)

504 left locking book

505 right locking hook

506 nose

507 central locking hook

508 guide pin

509 guiding stay

900 further upper cover

901 stay-shaped tab (formed on part 900, insulating)

902 shielding part

903 slanted body edge

RK coordinate system for orientation with respect to the body surfaces

V front

H back

L left

R right

O top

U bottom

What is claimed is:
 1. Shielded plug-in connector, in particular, amulti-pole, single-row or multi-row plug-in connector, comprised of ajack-in-blade strip and edge connector, wherein the jack-in-blade striphas at least one first contact element and the edge connector at leastone second contact element corresponding to the first contact element,wherein the edge connector, on or in its outer body areas, comprises, atleast partially, shielding sheets, wherein a shielding of the plug-inconnector is comprised of, in addition to the shielding sheets providedon the edge connector, a shielding group comprised of at least one firstelement, wherein this first element is arranged in the jack-in-bladestrip, and wherein the first element of the shielding group is a basepart (1) whose basic shape (1) is preferably a U-shaped rail, whereinthe shielding sheets on the edge connector comprise a planar body (79)and angled stays (71-75), wherein two of the angled stays and a portionof the planar body (79) between the two angled stays (71-75) form acounterpart to the base part (1), and wherein the counterpart and thebase part (1) together substantially encapsulate the at least one firstand second contact elements.
 2. Shielded plug-in connector according toclaim 1, wherein the base part (1) laterally surrounds substantiallyalmost completely at least one of the contact elements (38) of thejack-in-blade strip (30), while leaving open a preferably upwardlyoriented gap, and shields the at least one of the contact elements (38)relative to other contact elements.
 3. Shielded plug-in connectoraccording to claim 1, wherein the base part (1) is fastened in a socket(31) of the jack-in-blade strip (30) and is open in the upward directionin the direction of the edge connector (40) and surrounds at least oneof the contact elements (38) on three sides.
 4. Shielded plug-inconnector according to claim 1, wherein the base part (1) surrounds twoneighboring contact elements (38) of a contact row of a jack-in-bladestrip (30), wherein the two contact elements (38) are shielded relativeto a neighboring contact element (38) of the contact row and alsorelative to the next row of contact elements (38).
 5. Shielded plug-inconnector according to claim 1, wherein the base part (1) comprises aback wall (2), a left sidewall (4) and a right sidewall (3) and is openin the head area (5) and in the foot area (6), respectively.
 6. Shieldedplug-in connector according to claim 5, wherein the sidewalls (3 and 4)in the foot area (6) are recessed somewhat in the direction toward thehead area (5) so that at the back wall (2) a step (7) is formed. 7.Shielded plug-in connector according to claim 5, wherein the sidewalls(3 and 4) in the head area (5) each have a corner part (10 or 11) whichare bent outwardly by a lateral displacement (16), respectively. 8.Shielded plug-in connector according to claim 6, wherein at least onedepression (8) is provided in the area of the step (7) in the vicinityof the lower edge at the inner surface of the back wall (2).
 9. Shieldedplug-in connector according to claim 7, wherein the corner parts (10 and11) are bent respectively outwardly about a bending line (15) so thatthe respective upper corner formed by the horizontal and vertical outeredges of the sidewall (3) or the sidewall (4) projects farthestoutwardly.
 10. Shielded plug-in connector according to claim 7, whereinthe upper, outer horizontal edge of the corner parts (10, 11) isprovided with a slant (12 or 13) extending along the aforementioned edgeand wherein the upper, inner edge of the back wall also has a slant(14).